Rumble in the Concrete Jungle

http://usnwc.org/rumble-in-the-concrete-jungle/

http://photos2.meetupstatic.com/photos/event/5/2/f/0/600_304281232.jpeg

This extreme and unique mountain bike race will take place on Saturday, January 11 through the drained channels of the world’s largest man-made whitewater river. The race will offer both Mountain Bike and BMX categories.